| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adv] a [det] | 635 |
|
| 2 | [prep] a [det] hour | 334 |
|
| 3 | [prep] [adv] a hour | 222 |
|
| 4 | [adv] a [det] hour | 133 |
|
| 5 | [prep] [adv] [det] hour | 28 |
|
